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How do I close an open port from the terminal on the Mac?
...w do i close this port after I am done? and also which command can show me if port open or closed?
12 Answers
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How to create new folder? [duplicate]
I want to put output information of my program to a folder. if given folder does not exist, then the program should create a new folder with folder name as given in the program. Is this possible? If yes, please let me know how.
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Check whether a value is a number in JavaScript or jQuery [duplicate]
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"!isNaN(+n) && isFinite(n)" classifies the empty string as a number
– thenickdude
Aug 29 '13 at 3:03
3
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Correct way to check if a type is Nullable [duplicate]
In order to check if a Type ( propertyType ) is nullable, I'm using:
2 Answers
2
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Difference between mkdir() and mkdirs() in java for java.io.File [closed]
Can anyone tell me the difference between these two methods:
3 Answers
3
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Double negation (!!) in javascript - what is the purpose? [duplicate]
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When you say "pretty much equivalent", do you know if there are actually any differences? Faster than the function call Boolean(), perhaps?
– mwcz
May 6 '12 at 2:06
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Python if-else short-hand [duplicate]
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The most readable way is
x = 10 if a > b else 11
but you can use and and or, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fail if you put a variable ...
Delete a dictionary item if the key exists [duplicate]
Is there any other way to delete an item in a dictionary only if the given key exists, other than:
3 Answers
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Javascript/jQuery detect if input is focused [duplicate]
How do I detect when .click event triggers if textarea is already focused?
4 Answers
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'sudo gem install' or 'gem install' and gem locations
Running ' sudo gem list --local ' and ' gem list --local ' give me differing results. My gem path is set to my home folder and only contains the gems from ' gem list --local '.
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